Analysis

  • max time kernel
    17s
  • max time network
    143s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240802-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
  • submitted
    12/09/2024, 19:59

General

  • Target

    dcf433658184fa120f39bd06f8fa5ba3_JaffaCakes118.exe

  • Size

    524KB

  • MD5

    dcf433658184fa120f39bd06f8fa5ba3

  • SHA1

    5a6f16cc88b2106caf0e270dc93badd904124509

  • SHA256

    bf205d61c79fa58f46eb94765da5ab65d8b46efb3a6bdf9a71d32db8374b785a

  • SHA512

    1e0bc858d614fd62d4f1919b4bb13c59044a93d2321824afb083bc44d60584e64203675a43715f65a468cc05ad6a4e146a14e5d34c129b513219bfb73395602f

  • SSDEEP

    12288:unkVmqCiW54tLrMOzdAryeZCefGLg1BBRXHhssx4f:kkIiW5SrMOB8pZ/6gvnXHvx4f

Malware Config

Signatures

  • Darkcomet

    DarkComet is a remote access trojan (RAT) developed by Jean-Pierre Lesueur.

  • Modifies WinLogon for persistence 2 TTPs 1 IoCs
  • Adds policy Run key to start application 2 TTPs 4 IoCs
  • Checks computer location settings 2 TTPs 2 IoCs

    Looks up country code configured in the registry, likely geofence.

  • Executes dropped EXE 4 IoCs
  • UPX packed file 6 IoCs

    Detects executables packed with UPX/modified UPX open source packer.

  • Uses the VBS compiler for execution 1 TTPs
  • Adds Run key to start application 2 TTPs 4 IoCs
  • Suspicious use of SetThreadContext 1 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s).

  • System Location Discovery: System Language Discovery 1 TTPs 9 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

  • System Network Configuration Discovery: Internet Connection Discovery 1 TTPs 2 IoCs

    Adversaries may check for Internet connectivity on compromised systems.

  • Modifies registry class 1 IoCs
  • Runs ping.exe 1 TTPs 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 48 IoCs
  • Suspicious use of SetWindowsHookEx 3 IoCs
  • Suspicious use of WriteProcessMemory 29 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\dcf433658184fa120f39bd06f8fa5ba3_JaffaCakes118.exe
    "C:\Users\Admin\AppData\Local\Temp\dcf433658184fa120f39bd06f8fa5ba3_JaffaCakes118.exe"
    1⤵
    • Checks computer location settings
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:2648
    • C:\Users\Admin\AppData\Local\Temp\Sk1D Crypter Private (2).exe
      "C:\Users\Admin\AppData\Local\Temp\Sk1D Crypter Private (2).exe"
      2⤵
      • Executes dropped EXE
      • Suspicious use of SetThreadContext
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:2284
      • C:\Windows\Microsoft.NET\Framework\v4.0.30319\vbc.exe
        "C:\Windows\Microsoft.NET\Framework\v4.0.30319\vbc.exe" /noconfig @"C:\Users\Admin\AppData\Local\Temp\q0q4vcgj\q0q4vcgj.cmdline"
        3⤵
        • System Location Discovery: System Language Discovery
        • Suspicious use of WriteProcessMemory
        PID:1404
        • C:\Windows\Microsoft.NET\Framework\v4.0.30319\cvtres.exe
          C:\Windows\Microsoft.NET\Framework\v4.0.30319\cvtres.exe /NOLOGO /READONLY /MACHINE:IX86 "/OUT:C:\Users\Admin\AppData\Local\Temp\RES6721.tmp" "C:\Users\Admin\AppData\Local\Temp\vbcCF6A68FFE013413E805E5F343B7DBD69.TMP"
          4⤵
          • System Location Discovery: System Language Discovery
          PID:2784
      • C:\Users\Admin\AppData\Local\Temp\svchost.exe
        C:\Users\Admin\AppData\Local\Temp\svchost.exe
        3⤵
        • Adds policy Run key to start application
        • Executes dropped EXE
        • Adds Run key to start application
        • System Location Discovery: System Language Discovery
        • Suspicious use of SetWindowsHookEx
        PID:4776
    • C:\Users\Admin\AppData\Local\Temp\YUY.exe
      "C:\Users\Admin\AppData\Local\Temp\YUY.exe"
      2⤵
      • Modifies WinLogon for persistence
      • Checks computer location settings
      • Executes dropped EXE
      • Adds Run key to start application
      • System Location Discovery: System Language Discovery
      • Modifies registry class
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:3648
      • C:\Windupdt\winupdate.exe
        "C:\Windupdt\winupdate.exe"
        3⤵
        • Executes dropped EXE
        • Adds Run key to start application
        • System Location Discovery: System Language Discovery
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of SetWindowsHookEx
        PID:2464
      • C:\Windows\SysWOW64\cmd.exe
        "C:\Windows\System32\cmd.exe" /k ping 127.0.0.1 -n 5 > NUL&del "C:\Users\Admin\AppData\Local\Temp\YUY.exe"
        3⤵
        • System Location Discovery: System Language Discovery
        • System Network Configuration Discovery: Internet Connection Discovery
        • Suspicious use of WriteProcessMemory
        PID:4440
        • C:\Windows\SysWOW64\PING.EXE
          ping 127.0.0.1 -n 5
          4⤵
          • System Location Discovery: System Language Discovery
          • System Network Configuration Discovery: Internet Connection Discovery
          • Runs ping.exe
          PID:4844
  • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
    "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --field-trial-handle=4304,i,12198811467968044966,17227406646827438786,262144 --variations-seed-version --mojo-platform-channel-handle=4140 /prefetch:8
    1⤵
      PID:4544
    • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
      "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=network.mojom.NetworkService --lang=en-US --service-sandbox-type=none --field-trial-handle=2952,i,12198811467968044966,17227406646827438786,262144 --variations-seed-version --mojo-platform-channel-handle=4916 /prefetch:3
      1⤵
        PID:2632

      Network

      MITRE ATT&CK Enterprise v15

      Replay Monitor

      Loading Replay Monitor...

      Downloads

      • C:\Users\Admin\AppData\Local\Temp\RES6721.tmp

        Filesize

        1KB

        MD5

        130c887790fb48c5f3b8b95120955d09

        SHA1

        abc4f9d2969c8c4c38ae8c6c71d2d2e3204d097a

        SHA256

        733714d4e01c98cd127b58563ffa0aa8ebc2753c76ccb9642be7e71978d053b7

        SHA512

        4605d26960b39b844a697d37232a7a3f488e0b77c2d405eed924be6446985633bbd21b1aa4990b742715114b7c462db51a1fdaadb06bf9f42d38930ff9c9f3ce

      • C:\Users\Admin\AppData\Local\Temp\Sk1D Crypter Private (2).exe

        Filesize

        97KB

        MD5

        c4236e67457ef81805dc0fc794517dc3

        SHA1

        8b50072e37d7440f4e5e61396e5acd99d9a1c011

        SHA256

        b08424444100bed728548307e14cfd8b053b8428752fb73274a403ee6879fa02

        SHA512

        cb8398390a3a95aab646633c9b6645f1a5756e416e499d79ea5635be91de380dd9e37d21621d83954b8ecff836b8e4a995c5c723766a72929f5a4b8f13d066ab

      • C:\Users\Admin\AppData\Local\Temp\YUY.exe

        Filesize

        648KB

        MD5

        57089c99b82d3fd491042192387cbe90

        SHA1

        554774a909f2c31d12a7a7fa09ee3968272a0520

        SHA256

        109b5ae69687dabc995389584168a8237c9b0ebbc2fe8b2461cf43aa8240ded3

        SHA512

        23db73f870b820e2383681bcd4d28ba326f27514d3bc2a9232b2ac84677a6c8b488785c94683e35def65c89889b392dc1445e8f774071e9fdef1e2433edea0bc

      • C:\Users\Admin\AppData\Local\Temp\q0q4vcgj\q0q4vcgj.0.vb

        Filesize

        60KB

        MD5

        063a440f561964ada316e1e2b496b875

        SHA1

        50cdf29c1060f78a9b4b657f6d9d457f060b3e6e

        SHA256

        55760883d25a9e2b67fdeb5bf0fe83461532f3c14a7c8e69cebe762b49a3079c

        SHA512

        c7a8950cae6a08b9517dc3dabaa89eccfac6c7596e2fcfc88161e22f0d3b904701be12fc1deaf0855ac7baa2bd54acb26ef7a8789f584cefb8f75dee32de171a

      • C:\Users\Admin\AppData\Local\Temp\q0q4vcgj\q0q4vcgj.cmdline

        Filesize

        224B

        MD5

        69326c85784dfe6ee46c97ecec95993d

        SHA1

        84db3abbcbe0e49ab831d296e3b3a2b5ae4b1725

        SHA256

        e4edb92cc89c6dcdb080bf1ff19d34a32257e64a4c402388342d727849e40c5c

        SHA512

        e5408e44995d2f4ac9ae1bc69c7ed1c1bc9bc546a7599784919e5e15269a471e6afd0d6862232b62785ba062d6b5ecf0a0ce5b1be0e364ab3e734715ef8fe2ca

      • C:\Users\Admin\AppData\Local\Temp\q0q4vcgj\q0q4vcgj.dll

        Filesize

        102KB

        MD5

        7f2066a1808b6ef1ef3aecdad98417bb

        SHA1

        93ff5045b0879f5cab8bef7477327a3107bdf9c0

        SHA256

        1342e85dc05d9757b47568e6bd1b3e08016fdde36508bd52afa6ba0d5ddc8126

        SHA512

        89067aa3c275f9b2ecb4255c79fd5c248c4abd8bb788e8764641160755e807fa7ad4d89865c5e9af78cd5f47c47c6ddf6b7c14549c5ac1bf37195c8c27d3ec26

      • C:\Users\Admin\AppData\Local\Temp\svchost.exe

        Filesize

        1.1MB

        MD5

        d881de17aa8f2e2c08cbb7b265f928f9

        SHA1

        08936aebc87decf0af6e8eada191062b5e65ac2a

        SHA256

        b3a37093609f9a20ad60b85a9fa9de2ba674cba9b5bd687729440c70ba619ca0

        SHA512

        5f23bfb1b8740247b36ed0ab741738c7d4c949736129e767213e321607d1ccd3e3a8428e4ba44bd28a275b5e3f6206285b1a522514b7ef7ea5e698d90a713d34

      • C:\Users\Admin\AppData\Local\Temp\vbcCF6A68FFE013413E805E5F343B7DBD69.TMP

        Filesize

        652B

        MD5

        39aee33f2cde14685715c8a3e9c15dcf

        SHA1

        40575e07a2e1be5aac86e3b42251db7bfc1da496

        SHA256

        4809fda409ef37ef864b8b002e05720e4346f954ed5c0f11464536871d4aded6

        SHA512

        b5bcbd622c80bfaa802f1ce1ba6a4262a3b043d71b3291289105c3e30fbb839eb5bd8cbb1a119e2f7608ad3a9515099d59c0b03ac63772d4f7921229caeffbf1

      • memory/2284-73-0x00000000053E0000-0x0000000005400000-memory.dmp

        Filesize

        128KB

      • memory/2284-87-0x0000000073120000-0x00000000738D0000-memory.dmp

        Filesize

        7.7MB

      • memory/2284-53-0x0000000073120000-0x00000000738D0000-memory.dmp

        Filesize

        7.7MB

      • memory/2284-28-0x0000000005410000-0x00000000054AC000-memory.dmp

        Filesize

        624KB

      • memory/2284-24-0x0000000000A20000-0x0000000000A3E000-memory.dmp

        Filesize

        120KB

      • memory/2284-20-0x000000007312E000-0x000000007312F000-memory.dmp

        Filesize

        4KB

      • memory/2284-75-0x00000000055F0000-0x000000000560F000-memory.dmp

        Filesize

        124KB

      • memory/2464-91-0x0000000000400000-0x00000000004B3000-memory.dmp

        Filesize

        716KB

      • memory/2464-88-0x0000000000400000-0x00000000004B3000-memory.dmp

        Filesize

        716KB

      • memory/3648-19-0x0000000002390000-0x0000000002391000-memory.dmp

        Filesize

        4KB

      • memory/3648-62-0x0000000000400000-0x00000000004B3000-memory.dmp

        Filesize

        716KB

      • memory/4776-81-0x0000000000400000-0x000000000041F000-memory.dmp

        Filesize

        124KB

      • memory/4776-85-0x0000000000400000-0x000000000041F000-memory.dmp

        Filesize

        124KB

      • memory/4776-82-0x0000000000400000-0x000000000041F000-memory.dmp

        Filesize

        124KB

      • memory/4776-90-0x0000000000400000-0x000000000041F000-memory.dmp

        Filesize

        124KB

      • memory/4776-78-0x0000000000400000-0x000000000041F000-memory.dmp

        Filesize

        124KB